USB 3.0

Also found in: Dictionary, Medical.

USB 3.0

The third-generation USB interface introduced in 2008. Called "SuperSpeed USB 3.0" (SS USB), it increased the transfer rate from 480 Mbps to 4.8 Gbps and also reduced CPU overhead by no longer continuously polling attached devices. In practice, USB 3.0 devices do not achieve a 1,000% speed increase. For example, a USB 3.0 external hard drive may provide only a 50% improvement over its USB 2.0 counterpart, because the drive's latency and circuitry are limiting factors.

Plugs and Sockets Differ
Although additional pins were added to 3.0, Type A and Micro USB 2.0 plugs insert into 3.0 sockets for backward compatibility. See USB and USB 3.1.

USB 3.0 Connectors
USB 3.0 Type A plugs can plug into USB 2.0 sockets, but the larger Type B and Micro USB plugs will not fit in USB 2.0 sockets. (Images courtesy of Intel Corporation.)

The Blue Port
USB 3.0 ports have a blue tongue in contrast to the black tongue on USB 2.0 and previous versions.

References in periodicals archive ?
Lattice Semiconductor s MachXO3 FPGA provided the programmability and bridging functionality in the small form factor our USB 3.
Renesas' free UASP driver runs not only on the Renesas oPD720200 USB 3.
The new flash drive, which has achieved SuperSpeed USB 3.
Industrial digital cameras manufacturer Point Grey Research Inc released on Thursday a new model to its line of Flea3 USB 3.
USB Implementers Forum also said it aims to reduce the size of USB 3.
Caracteristicas: Almacenamiento de 1TB, interfaz USB 3.
SuperSpeed USB is the specification delivering USB 3.
US SMSC (NASDAQ:SMSC), a designer of connectivity ecosystems, said on Monday it had taken over local Symwave, a fabless semiconductor specialist and developer of the SuperSpeed USB 3.
Iomega, an EMC company (NYSE: EMC) and a leading innovator in digital protection solutions for consumers and small and medium businesses, is excited to announce that it is moving to the new SuperSpeed USB 3.
Gigabyte at this year's Computex confirmed that Intel's USB 3.
WD) introduced its fastest My Book external hard drive, which uses the SuperSpeed USB 3.
Summary: GIGABYTE's new range of Motherboards features Onboard USB 3.